First, there is no such thing as an air brake endorsement. If a CDL driver does not pass the written test and perform the road test in an air brake equipped vehicle, they receive a restriction prohibiting them from operating commercial vehicles equipped with air brakes - however, there is absolutely NO requirement under the FMCSR for anyone operating an air brake equipped vehicle which does not fall in their jurisdiction - you don't need to know the first thing about them if the vehicle is not defined as a CMV under the FMCSR (except in New York State, which drops the weight requirement from 26,0001 lbs. down to 18,001 lbs. for intrastate used vehicles).
As for the vehicle being under 26,000 lbs, if the Gross Vehicle Weight Rating of the vehicle is 26,000 lbs. or less, the only times it requires a CDL is if it is a bus designed to transport more than 15 persons (including the driver) or is placarded for hazmat.
So, in short, no. Unless it's a bus, or it's carrying hazmat.
No. Such an endorsement does not exist for US licenses.
There is no such thing as an air brake endorsement on a US license - only a restriction for CDL holders who do not pass the written air brakes test and perform their pretrip and road tests in a CMV which is equipped with air brakes.
In the US, no - there is no such thing as an air brake endorsement - only a restriction for CDL holders who don't pass the written air brakes test and complete the pretrip and road tests in a vehicle equipped with air brakes, which prohibits them from operating vehicles requiring a CDL which are equipped with air brakes.
No.
That depends on which country you live in.
You can't get one. Primarily, because there is no such thing as an air brake endorsement on a US drivers licence. For a non-commercial vehicle (as defined by the FMCSR), absolutely no knowledge of, testing of, or training on air brake systems is required. It is only applicable to CDL holders. If they do not take both the written air brakes test AND conduct their road test in an air brake equipped vehicle, they receive a restriction on their CDL which prohibits them from operating air brake equipped commercial vehicles.
As much as their company is willing to pay them. You could have a Class B CDL and drive a trash truck, dump truck, roll off truck, oilfield truck, or have a job where driving isn't even the primary line of work. By the way, there is no such thing as an air brake endorsement on a US license - only a restriction for CDL drivers if they don't pass the written air brakes test and perform their pretrip and road tests in a vehicle equipped with air brakes.
If it does not require a CDL to be driven, there are no additional requirements. Such an endorsement does not exist on US licenses.
Depends on your country. If you have an air brake endorsement, then you're not in the US, as there is no such thing here. Other countries require it. Your licensing requirements for operating that vehicle will also depend on the Gross Vehicle Weight Rating.
That combination, unless it's hauling hazardous materials, doesn't require a CDL at all. Now, if that was a 12,000 GVW trailer, then a Class A would be required. There is no such thing as an air brake endorsement - only a restriction, and only applicable to vehicles requiring a CDL.
26000 lbs of cargo? A tandem straight truck, such as a flatbed or a dump, could haul that amount of weight legally.
Put your foot on the brake and move it into drive